Patents by Inventor Kanto Kurasawa
Kanto Kurasawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230264502Abstract: A printing apparatus acquires characteristic information about a recording medium and executes a light quantity adjustment in a reading operation using a reading unit based on the acquired characteristic information. By using the above-described configuration, it is possible to prevent an increase in the number of processes for analyzing read data obtained by reading a test pattern.Type: ApplicationFiled: April 28, 2023Publication date: August 24, 2023Inventor: Kanto Kurasawa
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Patent number: 11667141Abstract: A printing apparatus acquires characteristic information about a recording medium and executes a light quantity adjustment in a reading operation using a reading unit based on the acquired characteristic information. By using the above-described configuration, it is possible to prevent an increase in the number of processes for analyzing read data obtained by reading a test pattern.Type: GrantFiled: June 11, 2021Date of Patent: June 6, 2023Assignee: Canon Kabushiki KaishaInventor: Kanto Kurasawa
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Patent number: 11301194Abstract: A terminal apparatus capable of communicating with a communication apparatus specifies a first distance between the terminal apparatus and a first unit in the communication apparatus and a second distance between the terminal apparatus and a second unit in the communication apparatus, and causes a display unit to display a first screen which relates to the first unit in preference to a second screen which relates to the second unit and display the second screen based on an operation of the first screen displayed in preference to the second screen in a case where the first distance is shorter than the second distance, and display the second screen in preference to the first screen and display the first screen based on an operation of the second screen displayed in preference to the first screen in a case where the second distance is shorter than the first distance.Type: GrantFiled: May 21, 2020Date of Patent: April 12, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Kanto Kurasawa
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Publication number: 20210402815Abstract: A printing apparatus acquires characteristic information about a recording medium and executes a light quantity adjustment in a reading operation using a reading unit based on the acquired characteristic information. By using the above-described configuration, it is possible to prevent an increase in the number of processes for analyzing read data obtained by reading a test pattern.Type: ApplicationFiled: June 11, 2021Publication date: December 30, 2021Inventor: Kanto Kurasawa
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Publication number: 20200379700Abstract: A terminal capable of communicating with a communication apparatus is provided. The terminal comprises a specifying unit to specify a first distance between the terminal and a first unit in the communication apparatus, and a second distance between the terminal and a second unit in the communication apparatus; and a display control unit to cause a display unit to display a first message which relates to the first unit in preference to a second message relating to the second unit in a case where the first distance is shorter than the second distance in a situation of preparing the communication apparatus, and display the second message in preference to the first message in a case where the second distance is shorter than the first distance in the situation of preparing the communication apparatus.Type: ApplicationFiled: May 21, 2020Publication date: December 3, 2020Inventor: Kanto Kurasawa
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Patent number: 10596838Abstract: In a printing apparatus, a platen configured to support a sheet to be printed includes an ink receiver configured to receive ink discharged from a print head. The ink receiver includes a plurality of first ink grooves and a plurality of second ink grooves configured to guide the received ink, the second ink grooves having a tilt angle greater than that of the first ink grooves. The platen includes an absorber configured to absorb the ink received by the ink receiver, the absorber being arranged on a back side of the ink receiver.Type: GrantFiled: August 24, 2017Date of Patent: March 24, 2020Assignee: Canon Kabushiki KaishaInventors: Masakazu Tsukuda, Atsushi Kohnotoh, Tsuyoshi Yoshida, Yuki Emoto, Koki Shimada, Kuniaki Sato, Yasufumi Tanaami, Kanto Kurasawa, Katsuyuki Yokoi
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Patent number: 10556433Abstract: A liquid discharge apparatus includes a liquid discharge head including a discharge port configured to discharge liquid and a discharge port surface provided with the discharge port. A head cleaning member including a contact portion contacts the discharge port surface, and is configured to cause the contact portion to contact the discharge port surface and to move relative to the discharge port surface in order to clean adherents attached to the discharge port surface. The discharge port includes a plurality of protrusion portions extending toward a discharge port inner side. The contact portion includes a fiber, and the fiber in the contact portion includes a portion having a size greater than a minimum protrusion distance among protrusion distances between the protrusion portions.Type: GrantFiled: January 10, 2019Date of Patent: February 11, 2020Assignee: Canon Kabushiki KaishaInventors: Tomoki Ishiwata, Takatsugu Moriya, Shinya Asano, Kanto Kurasawa, Ryosuke Araki
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Publication number: 20190232665Abstract: A liquid discharge apparatus includes a liquid discharge head including a discharge port configured to discharge liquid and a discharge port surface provided with the discharge port. A head cleaning member including a contact portion contacts the discharge port surface, and is configured to cause the contact portion to contact the discharge port surface and to move relative to the discharge port surface in order to clean adherents attached to the discharge port surface. The discharge port includes a plurality of protrusion portions extending toward a discharge port inner side. The contact portion includes a fiber, and the fiber in the contact portion includes a portion having a size greater than a minimum protrusion distance among protrusion distances between the protrusion portions.Type: ApplicationFiled: January 10, 2019Publication date: August 1, 2019Inventors: Tomoki Ishiwata, Takatsugu Moriya, Shinya Asano, Kanto Kurasawa, Ryosuke Araki
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Patent number: 10350894Abstract: According to an embodiment of the present invention, a printing apparatus that satisfactorily sucks and recovers a printhead is provided. A printing apparatus that includes a transfer member, and the first and second printheads has the following arrangement. The apparatus includes the first and second suction units which suck a plurality of nozzles of the first and second printheads, a common negative-pressure generation unit which generates a negative-pressure for suction by these suction units, and a moving unit which moves these suction units from one end to the other end of each printhead. Then, the moving unit moves the first and second suction units so as to pass through concave gaps with respect to ink discharge surfaces of the first and second printheads corresponding to the first and second suction units at different timings.Type: GrantFiled: February 26, 2018Date of Patent: July 16, 2019Assignee: Canon Kabushiki KaishaInventors: Takashi Horiba, Hikaru Watanabe, Kanto Kurasawa
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Publication number: 20180257379Abstract: According to an embodiment of the present invention, a printing apparatus that satisfactorily sucks and recovers a printhead is provided. A printing apparatus that includes a transfer member, and the first and second printheads has the following arrangement. The apparatus includes the first and second suction units which suck a plurality of nozzles of the first and second printheads, a common negative-pressure generation unit which generates a negative-pressure for suction by these suction units, and a moving unit which moves these suction units from one end to the other end of each printhead. Then, the moving unit moves the first and second suction units so as to pass through concave gaps with respect to ink discharge surfaces of the first and second printheads corresponding to the first and second suction units at different timings.Type: ApplicationFiled: February 26, 2018Publication date: September 13, 2018Inventors: Takashi Horiba, Hikaru Watanabe, Kanto Kurasawa
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Publication number: 20170348986Abstract: In a printing apparatus, a platen configured to support a sheet to be printed includes an ink receiver configured to receive ink discharged from a print head. The ink receiver includes a plurality of first ink grooves and a plurality of second ink grooves configured to guide the received ink, the second ink grooves having a tilt angle greater than that of the first ink grooves. The platen includes an absorber configured to absorb the ink received by the ink receiver, the absorber being arranged on a back side of the ink receiver.Type: ApplicationFiled: August 24, 2017Publication date: December 7, 2017Inventors: Masakazu Tsukuda, Atsushi Kohnotoh, Tsuyoshi Yoshida, Yuki Emoto, Koki Shimada, Kuniaki Sato, Yasufumi Tanaami, Kanto Kurasawa, Katsuyuki Yokoi
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Patent number: 9703249Abstract: When fixing is not necessary in a printing apparatus including a fixing unit, a sheet to be conveyed is allowed to avoid the fixing unit. Specifically, a fixing unit-bypass path is provided on a conveying path corresponding to the fixing unit. Further, when a surface treatment material is not applied to a sheet from a surface treatment material applying head, that is, when fixing processing is not performed by the fixing unit, a sheet is conveyed along a fixing unit-bypass path. Since a sheet is conveyed along an bypass path when fixing processing is not performed as described above, it is possible to prevent a sheet from being affected by heat or the like while the sheet passes through the fixing unit.Type: GrantFiled: February 5, 2016Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventors: Kota Uchida, Kengo Nieda, Ryosuke Araki, Shinya Asano, Kanto Kurasawa, Mika Masuda, Yusuke Nakaya
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Publication number: 20160288505Abstract: In a printing apparatus, a platen configured to support a sheet to be printed includes an ink receiver configured to receive ink discharged from a print head. The ink receiver includes a plurality of first ink grooves and a plurality of second ink grooves configured to guide the received ink, the second ink grooves having a tilt angle greater than that of the first ink grooves. The platen includes an absorber configured to absorb the ink received by the ink receiver, the absorber being arranged on a back side of the ink receiver.Type: ApplicationFiled: March 28, 2016Publication date: October 6, 2016Inventors: Masakazu Tsukuda, Atsushi Kohnotoh, Tsuyoshi Yoshida, Yuki Emoto, Koki Shimada, Kuniaki Sato, Yasufumi Tanaami, Kanto Kurasawa, Katsuyuki Yokoi
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Publication number: 20160238972Abstract: When fixing is not necessary in a printing apparatus including a fixing unit, a sheet to be conveyed is allowed to avoid the fixing unit. Specifically, a fixing unit-bypass path is provided on a conveying path corresponding to the fixing unit. Further, when a surface treatment material is not applied to a sheet from a surface treatment material applying head, that is, when fixing processing is not performed by the fixing unit, a sheet is conveyed along a fixing unit-bypass path. Since a sheet is conveyed along an bypass path when fixing processing is not performed as described above, it is possible to prevent a sheet from being affected by heat or the like while the sheet passes through the fixing unit.Type: ApplicationFiled: February 5, 2016Publication date: August 18, 2016Inventors: Kota Uchida, Kengo Nieda, Ryosuke Araki, Shinya Asano, Kanto Kurasawa, Mika Masuda, Yusuke Nakaya
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Patent number: 9216597Abstract: At least one of processing units is capable of being pulled out of a main body of an apparatus during the occurrence of a sheet conveyance jam. A first cutter and a second cutter are arranged in the vicinity of the processing unit. The first cutter is configured to cut the sheet on an upstream of the processing unit. The second cutter is configured to cut the sheet on a downstream thereof. When the processing unit is pulled, the sheet is cut on the upstream and downstream of the processing unit.Type: GrantFiled: December 7, 2010Date of Patent: December 22, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Kanto Kurasawa, Yoshiaki Suzuki, Toshiaki Tokisawa, Masahito Yoshida, Kota Uchida, Takayuki Okamoto
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Patent number: 8827412Abstract: A printing apparatus includes a cooling unit configured to actively cool a sheet, a humidification unit configured to increase a moisture content of the sheet by supplying a humidified gas onto the sheet, and an inkjet print head configured to perform printing on the sheet having a moisture content increased by the humidification unit.Type: GrantFiled: October 18, 2012Date of Patent: September 9, 2014Assignee: Canon Kabushiki KaishaInventors: Yuji Kanome, Takashi Horiba, Masahiro Sugimoto, Kanto Kurasawa, Hikaru Watanabe
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Patent number: 8783851Abstract: To downsize a drying device that blows gas on a sheet to dry the sheet, a printing apparatus that includes a print head of an inkjet type is provided with a drying unit that dries a sheet printed by a print head. The drying unit has a plurality of conveying rollers that support the sheet; a conveying belt that conveys the sheet; and a nozzle that is arranged between the plurality of conveying rollers in a direction of the conveyance of the sheet by the conveying belt and blows gas toward the sheet. The nozzle has a blowout port and the blowout port is tilted with respect to a surface of the sheet, which is supported by the conveying rollers.Type: GrantFiled: September 13, 2012Date of Patent: July 22, 2014Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Suzuki, Toshiaki Tokisawa, Kanto Kurasawa
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Patent number: 8783859Abstract: A sheet conveyance apparatus comprising: a first processing unit including a first sheet conveyance mechanism; a second processing unit including a second sheet conveyance mechanism; a cutting unit, interposed between the first processing unit and the second processing unit, for cutting the sheet; and a controlling unit that controls, in a case of trouble with sheet conveyance, driving of the first sheet conveyance mechanism until an end of the sheet reaches the first processing unit side beyond a cutting position of the cutting unit.Type: GrantFiled: October 17, 2012Date of Patent: July 22, 2014Assignee: Canon Kabushiki KaishaInventors: Toshiaki Tokisawa, Yoshiaki Suzuki, Kanto Kurasawa, Masahito Yoshida, Kota Uchida, Takayuki Okamoto
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Patent number: 8757745Abstract: The printing apparatus includes: a print unit to print on a medium using a pigment ink and a dye ink; a stir mechanism capable of stirring at least the pigment ink; and a control unit to perform control to make the duration of the stirring operation executed prior to starting the printing operation longer when the pigment ink is included in the ink to be used in the printing operation than when it is not.Type: GrantFiled: December 4, 2009Date of Patent: June 24, 2014Assignee: Canon Kabushiki KaishaInventor: Kanto Kurasawa
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Patent number: 8641033Abstract: A sheet feeding unit to be inserted between a printer main unit and a sorting unit having a plurality of discharge trays. The sheet feeding unit includes a casing in which a sheet is housed and through which a feed path and a discharge conveyance path extend horizontally. The casing has on a face thereof adjacent to the printer main unit an exit of the feed path and an entrance of the discharge conveyance path, and on a face thereof adjacent to the sorting unit an entrance of the feed path and an exit of the discharge conveyance path. The positions of the exit and entrance of the feed path coincide with each other when seen in a conveyance direction, and the positions of the entrance and exit of the discharge conveyance path coincide with each other when seen in the conveyance direction.Type: GrantFiled: December 10, 2010Date of Patent: February 4, 2014Assignee: Canon Kabushiki KaishaInventors: Toshihide Wada, Toshiaki Tokisawa, Kanto Kurasawa, Yoshiaki Suzuki